Nissan H engine

The Nissan H series of automobile engines is an evolution of the Nissan "R" engine which was based on the 1.5L 3 main "G" used in the 1960s. Both straight-4 and straight-6 versions were produced, it is a pushrod OHV design with iron block, early models with an iron head, later models with aluminum head. Versions of this motor have been used in many Nissan autos and forklifts, well into the eighties and a version called H20II is still in production today. The SD diesels are based on this series of motors (bore spacing and basic block layout)

Inline-4

1H

The 1H is not related to the later H engines. It was also an all-iron, OHV engine, but with a bore and stroke of 73 and 89 mm it displaced 1,489 cc. Power was 50 PS (49 hp) at 4,400 rpm in 1956, but this increased to 57 PS (56 hp) in August 1958.

Applications:

H

The basic H is a 1.9 L (1,883 cc) engine produced from 1962 for Nissan's Cedric. Bore was 85 mm (3.3 in) and stroke was 83 mm (3.3 in). The 8.0:1 compression version produced 92 hp (69 kW) and 117 lb·ft (159 Nm), while a high-compression engine (8.5:1) produced 95 hp (71 kW) and 120 lb·ft (163 Nm).